package com.example.demo.utils;

import java.io.UnsupportedEncodingException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

public class Md5Utils {

	public static String getMD5Str(String str) {    
        MessageDigest messageDigest = null;    
    
        try {    
            messageDigest = MessageDigest.getInstance("MD5");    
    
            messageDigest.reset();    
    
            messageDigest.update(str.getBytes("UTF-8"));    
        } catch (NoSuchAlgorithmException e) {    
            System.out.println("NoSuchAlgorithmException caught!");    
            System.exit(-1);    
        } catch (UnsupportedEncodingException e) {    
            e.printStackTrace();    
        }    
    
        byte[] byteArray = messageDigest.digest();    
    
        StringBuffer md5StrBuff = new StringBuffer();    
    
        for (int i = 0; i < byteArray.length; i++) {                
            if (Integer.toHexString(0xFF & byteArray[i]).length() == 1)    
                md5StrBuff.append("0").append(Integer.toHexString(0xFF & byteArray[i]));    
            else    
                md5StrBuff.append(Integer.toHexString(0xFF & byteArray[i]));    
        }    
    
        return md5StrBuff.toString();    
    }
	
	
	
	
	
	
}
